Gear-lock for automobiles



C; a. IFOSIEN. GEAR LocK'sob AUTOMOBILES. APPLICATION FILED- Auciqe 1919.

1 ,353 1 1 9. I Patented Sept. 14, 1920.

[2mm 71%05/EM CHARLES G. TROSIEN, OF PONTIAC, MICHIGAN.

GEAR-LOCK FOR AUtioMonILEs.

To all wit-m it'mtiy concern:

Be it known that I, CHAiiLns G. Tnosinn, a citizen of the United States, residlng at Pontiac, county of Oakland, State of Michian, have, invented a certain new and useful Specification of Letters Patent.

mprovement in Gear-Locks for Automobiles, and declare the following to be a full,

' clear, and exact description of the same,

such asv will enable others skilled in the art to which it. pertains to make and use the same, reference being had to the accompanying drawings, which form a' part of this specification.

My invention relates to gear locks for automobiles -and an object of'my improvements is to provide a simple and strong means for locking the portions of the change speed gearing which move parallel to each other. I have shown my invention embodied in an apparatus in connection with a Buick change speed gear. I

'In the drawings,

Figure 1 is a sectional elevation of an apparatus embodying my invention and parts adjacent and coacting therewith.

. .Fig. 2 is a sectional elevation of the same, the section being taken in a plane at right angles to that of Fig. 1.

Fig. 3 is a section on the line III-III of Fig. 2, the casing being omitted.

Fig. 4 is an inverted plan view showing the lower end of the cam rod.

Fig. 5 is a diagram representing the lugs on the moving parts of the change speed gearing.

to the diameter of the lug c 0*.

Patented Sept. 14., 1920. Application filed August 16, 1919. Serial No. 317,857.

Thelugsi- I or forks 15 d extend down beside the lugs The operation of the vice is as follows:

WVhen the parts 0, c are in position such that the change speed gearing shall be in its neutral position, the lugs 0 c come'be side each other, as shown in Figs. 3- and 5. When the rod 03 is turned to the position shown in Fig. 2', and indicated in Fig. 1, the parts 0, c are free to move, the lugs above-described dpassing through the opening between the" forks or lugs d all without contacting such lugs. WVhen the lugs 03 d turn to a position at, right angles to that just described, the lugs d d are interposed in the line of travel of the lugs 0 '0, as shown in Fig. 3 and-the parts a, c are thereby locked and restrained from movement along the guide rod 03. i

What I claim is:

1. In an apparatus of the kind described, two adjacent parts moving parallel to each other and adapted to shift the change speed gearing, a salient engaging means on each of said parts, a locking-part rotatable about its axis adapted to engage said engaging means in one angular position to prevent the motion of its parts, and to leave said .a is the change speed gear casing; e is thegear-shif-ting lever; b is a horizontal rod bearing in the casing a. c, 0 are sleeves having the striker forks extending therefrom, both of said sleeves engaging and sliding upon the rod 6, as in the conventlonal construction. 0 1s a semi-cylindrical lu'g rising fromthe part 0 at the inner edge of the part 0 Lugs 0 0, when the gearing is in its-neutral position, together form a cylindrical projection rising vertically from the parts a and 0 al is a rod adapted to turn in the casing a and extending approximately at right angles t0 the motion of the parts 0, c and approximately axially in line with the lug c 0". The upper part of the rod dis provided with a pin lock and the'rod may be turned by a key in the usual form. The lower end of the rod 03 is provided with lugs or forks (P, 03 spaced from each other at a distance approximately equal parts free at another angular position, an in'closing casing, said locking part extending through and bearing in the wall of said casing.

, 2. In an apparatus of the kind described, two parts adapted to 'move parallel and adjacent to each other to shift the change speed gearing, a lug rising from one of said parts, a lug rising from the other of said parts, said lugs being so located that they shall come adjacent to each other at the neutral position of the gearing, and a looking part extending through the gear casing and adapted to turn to one position and engage said lugs to prevent the motion of said parts, or to another position to permit the free movement of said parts.

3. In a change speed gearing, the combination of two parts adapted to move parallel and adjacent to each other, 0. lug rising from each of said parts, a locking part ex tending through the casing'and having lugs at its lower ends forming branches of a fork extending over said lugs, said locking part being so constructed that it shall .110 permit the free movement of the members'in one p0sition of it branches 5 branches and shall inter-pose its in the line of travel of said members in its other position.

4. In an apparatus of the kind described,

awtwo parts adapted-Ito niove parallel and adjacent toeach other ,toshift the change speed gearing,

a lug rising saith-legs heing s parts, parts,

a lug rising from one of said from the other of said 0 located that they extending through the gear cation.

shall come adjacent to each other at the 10 neutral position of the gearing, and a rod casing adapted to engage said lugs to prevent the motion of said parts and to disengage said lugs.

In testimony whereof, I sign this specifi- 15 CHARLES e. TROSIEN. 

